A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 6645-01-613-7389
NSN 5920-01-288-0145
NSN 5910-00-453-0532
NSN 6620-00-254-5127
NSN 5855-01-437-6161
NSN 5915-01-513-9122
NSN 6650-01-259-5940
NSN 6610-01-106-1783
NSN 5925-01-159-7595
NSN 5930-01-141-6732
NSN 5996-01-279-8669
NSN 6685-01-500-3031